Too much CPU consumption if invisible

[eku]

Please read the prerequisites to run scrcpy.

Also read the FAQ and check if your issue already exists.

Environment

• OS: Fedora 41
• Scrcpy version: 2.4
• Installation method: manual build
• Device model: Xiaomi
• Android version: LOS21

Describe the bug

scrcpy consumes 10-20% of cpu even when the window is not visible, i.e. minimized or behind other windows.

I would expect that scrcpy honours visbility and runs in idle mode if invisible, i.e. does not refresh window content and others.

[rom1v]

Visible or not, it continues to decode video frames coming from the device (they must be decoded anyway, because further frames depends on earlier frames).

[eku]

Visible or not, it continues to decode video frames coming from the device (they must be decoded anyway, because further frames depends on earlier frames).

So there's no control channel back to the server running on the device that can be used to halt streaming?

[rom1v]

No. It theory, it could be possible, but there would be a delay before the first frame is upfated on window restore.

Moreover, the video stream can be recorded or forwarded to v4l2, regardless of the window visibility.

[eku]

Moreover, the video stream can be recorded or forwarded to v4l2, regardless of the window visibility.

But this could be done with an option.

Feel free close the issue if you won't implement this.